Pie-machine.



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PIE MACHINE.

APPLIUATION FILED HAY 25, 1908.

927,490. Patented July 13, 1909.

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PIE MACHINE. APPLIOATIONTILBD 11u25; 190s.

Patented July 13, 1909.

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PIE MACHINE. l APPLICATION FILED MAY 25, l1908.

Patented July 13, 1909.

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O. GLBORNE.

PIE MACHINE.

ArPLIoA'rIoN FILED 11u25, 190e.

Patelltd July 13, 1909.

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Il! IHM 0. COLBORNE.

PIE MACHINE.

APPLIQATION FILED nu 25, 190e.

Patented July 13, 1909.`

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UNITED STATES P ATENT OFFICE.

OLIVER COLBORNE, OF CHICAGO, ILLINOIS.

PIE -MA CHINE.

To all whom it may concern:

Be it known that I, OLIVER CoLBoRNn, a citizen of the United States of America, and a resident of Chicago, county of (look, State of Illinois, have invented certain new and useful Improvements in Pie-Machines, of which the following is a specification.

The main objects of this invention are to provide an improved` form of pie machine which is rapid and efficient in its operation and which is adapted to accomplish the various operations of making pies with a minimum amount of mechanism; to provide an improved form of pie crust trimming mechanisin adapted to operate automatically for trimming the erusts on pie tins while such tins are being carried along by a continuously movable conveyor; to provide iinproved means for moistening the edges of the bottom crusts so as to cause the upper orusts to adhere thereto 5 and to provide an im proved arrangement of the various mechanisms which act upon the pies so that each tin will traverse the circuit twice during each completo cycle of operations, thereby greatly simplifying the mechanism, reducing its cost, and reducing the floor space which it occupies. These objects are accomplished by the device shown in the accompanying drawings, in which- Figurc l. is a top plan of a pie machine constructed according to this invention. E ig. 2 is a side elevation ol the same. Fig. 3 is a front elevation of the same. Fig. 4l is a sectional detail of the dog and trip mechanism which controls the registration of the trimmer with the tins during the trimming operation. Fig. 5 is a detail showing the parts of Fig. 4 in plan. Fig. 6 is a detail showing :in front elevation the mechanism which controls the operation of the moistener. Fig. l7 is a top plan of the same. `lfig. 8 is an enlarged detail showing the moistening nicchanism in side elevation and partly in section. Fig. Q is a detail showing the arrangement of the stop recesses which cooperate with the spring pressed detent for controlling the position of the moistening brush.. Fig. l() is a detail showing the spring which allows yielding of the trimmer head. Fig. 1l Ais a detail of the mechanism which causes the movement of the pie tin during the operation of trimming a pie crust thereon, and by means of which the trimmer is caused,` to operate upon each pie tin but once, While the Specification of.' Letters Patent.

Application filed May 25, 1908.

Patented July 13, 1909.

Serial No. 434,750.

pie tin travels twice around the circuit. Fig. l2 is an elevation of the same, some of the parts being shown in section on the line A-A of Fig. l1. Fig. 13 is a section taken on the line B-B of Fig. l2. lig. llt is an elevation of the signal mechanism. Fig. l5 is a top plan of the same.

In the construction shown in the drawings, the supporting frame coniprises a substan tially circular platform or table 1 supported by a central pedestal f2. A conveyor comprising a series of supports 3 for pie tins is arranged to travel around the outer edge of the table l and a pie crust forming apparatus 4, a trimmer 5 and a moistencr 6 are mounted upon the table so as to overhang the path of the pie tin supports.

.Power is applied at the pulley 7 and. is transmitted to the crust forming mechanism by means of the shaft 8. The trinimer and the moistener are operated by the movement of the conveyor, which in turn is drivenfrom the shaft S through the bevel gears 9, the shaft l0, and the mechanism which will be hereinafter described.

The conveyer mechanism comprises a gear ll loosely journalcd on the pedestal 2 concentric with the shaft 10, a plurality of radially disposed arms l2 rigidly connected with the gear 1l and rotatable therewith. Each ofthe arms l2 has mounted. at its end a vertically disposed shaft 13 which carries at its upper end a pie tin supportr, and whichv is both rotatably and vertically slidable in its bearing on said arm. Each of the shafts 'i3 has near its lower end a friction pulley 141. Plates l5 are also secured below each of the pie tin supports 3 so as to catch the cuttings of dough which. are removed. by the trimmer, as will hereinafter appear. Rotation. of the gear 1l is accomplished. by means of a pinion 16 which is connected with the shaft 10 by mechanism including the bevel gears 17, the friction dish 18 and the friction wheel 1). The friction wheel I8 is normally urged into contact with the friction Wheel 1) by the spring 20, and is adapted to be thrown out of such contact by the forked arm 2l. which is shifted by a foot treadle 22. The purpose of this treadle mechanism is to permit the conveyer to be stopped while the crust forming mechanism continues to operate, a feature which is of advantage, as it permits the oper ator to cull out any crusts which are not perfectly formed, and. replace such culled crusts with others, thus insuring that every pie is perfect on being delivered from the machine.

The crust trimmer which is designated 5,

as a whole, comprises an arm 23 upon which l is rigidly mounted a head 24 carrying a plurality of trimmer rollers 25 which are loosely journaled so as to rotate about vertical axes and have rolling contact with the edges of a pie tin on the adjacent support 3. The rollers 25 are preferably mounted in ball bear ings so as to rotate with a minimum of friction, and the studs which carry them are adjustable in the head to suit different sizes of pies. The trimming mechanism also includes means for lifting the shafts 13 so as toi carry the pie tins into engagement with the trimming rollers 25, and means forrotating the shaft 13 when its. respective pie tin is in contact with the trimming rollers. A spring shown in Fig. 10 insures a uniform. pressure between each tin and the trimming rollers, regardless of wear or slig-ht difference in the lengths of the shafts 13.

the arm 27, which arm is pivoted at 28k on a bracket 29 of the supporting frame. arm 27 carries a roller 30 (see Fig. 12) which engages a cani 31 and thereby controls the position of the arm 27 so as to carry the track 26 into or out of position for engaging and; lifting the shafts 13. as they traverse said track.

arm 27 occupies the position shown by full lines in Fig. 12, andthe shafts 13 will then freely pass abovethe track 26 Without being lifted thereby. When the roller 3() is in engagement with one of the high seats 34, the arm 27 will occupy the position shown'V by dotted lines in Fig. 12. The rotation ofthe cam 31 is accomplishedv by means of a stud or shoulder 36 carried by one of the arms of the gear 11 and so located as to strikey the teeth of the star wheel 37 which is rigidly fastened to the cam 31.

The crust trimmer arm 23 is loosely jour naled concentrically of the shaft 10 and has a limited angular movement so as to permit the trimmer to travel back and forth. along the path of the pie tins on the conveyer. A movable detent or draw bolt 38 is carried by the arm 23 and extends downwardly through. a slot 39 in the platform 1, being vertically slidable on the armV so as to move. into and rlhe shafts L3 areV lifted by means of a cam track 26 carried' byl The.

The bracket 29y is bent upward and. carries a curved friction surface 32, which. is. l normally urged outward by means of springs Vhen t e roller 30 is seated. in one of the low seats 35, as in Fig. 13, the- 'j out of engagement with, a shoulder on,` each of the arms 12 (see Figs. 4 and 5). A double wedge 40= is located at the end of the slot 39 in position for engaging rollers 41 on the detent 3S and retracting it from engagement with the arm 12 when said arm approaches a position near the end of the slot 39. A spring 42 returns the arm 23 to its normal 'initial' position, said arm being brought to a stop without shock by means of a dash pot 43, which may be of any usual construction suitable for the purposel The moistening of the edges` of thel lower crusts of the pies is accomplished by means of the fountain moistener- 6 which comprises a pairof brushes extending' in. diametrically opposite directionsv from a hollow perforated head 44 (Fig. 3), to: which water is supplied from thev tank 4.5, the ratey of feed being controlled byv the pet-cock 46. The head 44 is rotatable on a horizontal axis so as to turn the brushes of the moistener into. and; out of position for moisteningthe pie crusts. Rotation ofthe head 44l is accomplished` by the pinion 47v which. meshes with a gear-48 having thereony a seriesiof studs or shoulders 49. which are equally spaced', the angular intervals between them being such that the head 44 will'y make one quarter turn foreach rota tion of the. gear 43. through such; angular-inn terval. Thepositionsoff the gear 48 are-con.- trolled by a springdetent 48,'m which seats in depressions 43h. @ne of the arms L2 carries ank upward-ly extending stud 50 locatedl so as to engage the lower-most stud` 49 and rotate the brush head one quarter turn. during each` passage of, said. stu d 50. Thus, whenever the arm 1.2 which carries the stud: 50 passes the moistener, saidmoistener will be turned tov bring the brush either into or out of position` for inoistening the pie crust. The stud 50 is so located with. respect to-.its own armI as to turnA the brush afteiiits particular pie tinf support has passed the. brush-. The next fol,g lowing pie tin support is preferably markedr ina conspicuousmanner, as, for instance,by painting the plate which is designated; 15AV in Fig. 1 with? a distinguishing color.

In order to notify the operator when the conveyeris about to complete al revolution, a 115 signal lmechanism illustratedv in Figs. 1 4; and 15is operated; just before the partsarrive at the position in whichv they are shown in Fig. 1. llhis. alarmv mechanism, comprises a, bell 51 operated by an arm 52 whichextends into positionL for. being engaged by the stud 5() and which may, of course, be of any ordinary construction.

The operation ofthe device shown. is as follows The conveyer isshown in its normall initial position in Fig. 1. During the normal operation of the machine the conveyer rotates continuously, and the crust forming. mechanism is also in continuous operation and is gearedsoasftodeliver pie-crusts one at Cri a time at a rate of speed corresponding to the rate at which successive pie tm supports arrive at positions for receiving the crust. Assuming, for example, that a crust is already in position on the delivery platform 53' of the pie crust forming machine, the operator picks up such crust and lays it upon the pie tin which is on the first pie tin support identified in the drawing as 15A when such support is moving between its position in Fig. 1 and the trimmer, and in this manner the successive crusts are placed upon the successive tins as they traverse this part of their path. lf for any reason a crust is found to be faulty, the operator may temporarily stop the conveyer without interfering with the continuous operation of the crust forming device, by disconnecting the friction drive wheels 18 and 19 by means of the pedal 22. Immediately before the iirst pie tin, with its bottom crust in position, arrives at the crust trimming mechanism, the stud 36 engages the star 37 and rotates the cam 31 so as to lower the track 26. The bottom crusts are therefore carried past the trimmer without contact therewith. The stud 50 now throws the moistener into its operative osition immediately before the arrival of t e first tin carrying the bottom crust, so that the brush swabs moisture upon the edges of said bottom crust. ln this way the whole series of bottom crusts are moistened during the lirst revolution of the conveyer. As the first pie tin approaches the position in which it is shown in Fig. 1, the alarm 51 is sounded. The operator then feeds to the crust forming device the dough from which top crusts are rolled. lt is usual to use different dough for top and bottom crusts. During the continued operation he now places the top crust u, on the pies which have been previously iilied during their passage between the moistener and the crust rolling device. As the first tin approaches the trimmer during the second revolution of the conveyer, the stud 36 shifts the cam 31, throwing up the track 26. As soon as the pie tin arrives at a position directly below the trimmer 5, its arm 12 is engaged. by a detent 38, and the trimmer is carried along with the pie tin in registering position therewith. The track 26 lifts the pie tin into operative engagement with the crust trimming rollers 25, and the roller 14 engaging the friction surface 32 rotates the pie tin so that the rollers 25 will roll around the edges thereof and cut off all of the surplus dough. As soon as the trimming operation is completed, the dctent 38 will be withdrawn by means of the wedges 4.0 and will be incidentally returned to its initial position, ready for trimming the succeeding pie crust. The stud 50 traveling in advance of the rst pie tin rotates the moistener head so as to prevent eontact of the brush with the finished pie. When all of the pies .have been iinished, they are removed from the conveyer during their passage of that part of their path which lies between the moistener and the crust forming device. The alarm is again sounded when the first carrier approaches the position 15A of Fig. 1, and the whole opera* tion is repeated.

With the construction shown, the conveyer' ol crates continuously, and each pie is comp eted during two revolutions of the conveyer. This arrangement admits of concentrating the mechanism so as to occupy a minimum amount of floor space, and makes it possible to roll both bottom and top crusts by means of the same crust rolling mechanism, thereby saving the expense of the eXtra crust rolling mechanism and the additional`mechanism which is necessary for operating it.

VV hat I claim as my invention and desire to secure by Letters Patent is 1. The combination of a support for a pie tin arranged to travel in a circuit, a crust trimmer and a crust moistener adjacent to the path of said support,and mechanism for automatically causing said trimmer and moistener to operate alternately during respectively different trips of said support around the circuit.

2. The combination of means for carrying a pie tin around a circuit, a trimmer adjacent to the path of such tin, and means controlled automatically to bring' the tin into operative engagement with said trimmer during one trip around. the circuit and prevent such engagement during another trip.

3. The combination of a support for a pie tin arranged to travel in a circuit, a crust trimmer located in position to cooperate with said support for trimming a pie crust thereon, and mechanism adapted to cause said trimmer to operate on said support only during alternate trips thereof around the circuit.

1. The combination of a conveyer adapted to carry a pie tin, a member movable with said conveyer, a trimming roller jour naled on said member and adapted to trim a pie crust on such tin through the relative rotation of such tin and roller, and. means for causing such relative rotation while the conveyer is in motion.

5. The combination of a conveyer adapted to carry a pie tin, a member arranged to travel along a limited part of the path of said. conveyer, a trimming roller journaled on said member and adapted to trim a pic crust on such tin through the relative rotation of such tin and roller, and means for causing such :relative rotation while the con veyer' is in motion.

6.y The combination of a conveyer adapted to carry a pie tin, a member arranged to travel backward and forward along a limited part of the path of said conveyer, a trimming roller journaled on said member and adapted to trim a pie crust onsuch tin through the relative rotation of such tin and roller, and means for causing such relative rotation while the conveyer is in motion.

7. The combination of a pie tin support movable in a horizontally disposed path, a trimmer located above the path of said support and adapted to travel along said path, and means. arranged to operate automatically for relatively shifting said support and trimmer axially of the pie tin when they are in registering alinement.

8. The combination of a trimmer, a conveyer adapted to carry pie tins in succession to said trimmer, said trimmer being adapted for trimming pies while the conveyer is in motion, and means operating to shift each pie tin in an axiall direction relatively to the trimmer while it is in registering alinement therewith.

9. The combination of a conveyer adapted to carry a series of pie tins, the path of said conveyor being of circular curvature at one part, an arm journaled concentrically of said curved part of said path, a trimmer carried by said arm and adapted to engage the edge of a pie tin on said conveyer for trimming a crust thereon, and means for locking said arm to said cenveyer when a tin thereon arrives at a position te register with said trimmer and thereby causing the trimmer to travel with said conveyer during the trimming operation.

10. The combination of a conveyor adapted to carry a series of pie tins, the path of said conveyer being of circular curvature at one part,- an arm journaled concentrically of said curved part of said path, a trimmer carried by said arm and adapted to engage the edge of a pie tin on said conveyer for trimming a crust thereon, means for locking said arm to said conveyer when a tin thereon arrives at a position to register with said trimmer and thereby causing the trimmer to travel with said conveyer during` the trimming operation, and means for automatically disconnecting said arm and conveyer at a predetermined point along said path.

1].. The combination of a conveyor having thereon a series of supports adapted to carry pie tins continuously and in succession along a certain path, a crust trimmer mounted te travel forward and back along a limited. part of said path, means for insuring the operative registration of the trimmer with the adjacent support during the forward movement of the trimmer, and means for automatically shifting said trimmer backward so as to register with. a succeeding support when such succeeding support arrives at a certain predetermined position along said path.

12. '.lhe combination of a conveyor having thereon a series of supports adapted to carry pie tins continuously and in succession along a certain path, a crust trimmer mounted to travel forward and back along a limited part of said path, means adapted to connect said trimmer to said conveyer when a support arrives in position to register with said trimmer, means for disconnecting said trimmer from said conveyer after the trimmer has been carried along a certain distance thereby, and means normally urging said trimmer backward to its initial position.

.18. The combination of a conveyer, a pie tin support carried thereby and vertically movable thereon, a trimmer located above said support and adapted to travel therewith, a cam surface disposed along the path of said support and movable into and out of position for engaging and shifting said support into engagement with said trimmer, and means adapted. to automatically shift said cam surface between said positions at predetermined intervals.

14. The combination of means for carrying a pie tin around a circuit, a trimmer adjacent to the path of such tin, a pivoted arm arranged to control the operative engagement of said tin and trimmer, a cam arranged to shi'l't said arm to alternately cause and prevent such engagement, and mechanism adapted to turn said cam at predetermined intervals. A

15. ',lhe combination of means for carrying a pie tin around a circuit, a meistener located adjacent to said circuit and adapted to meisten the edges of a pie crust on a tin during its passage around said circuit, and means controlled automatically to cause the oper-ation of said moistener during onetrip of the tin around the circuit, and to prevent such operation during another trip.

1G. The combination of means for carrying a pie tin around a circuit, a moistening brush mounted adjacent to the path of the tin and movable inte and out of position Vfor contact with a pie crust on such tin, means controlled by said carrying means for moving said brush into position for engaging the pie tin during one trip thereof around the circuit and adapted to shift said brush out of such position during another trip.

17. 'lhe combination of a eonveyer adapted to carry pic tins in succession, a head rotatably mounted above said conveyor and having` thereon a radially disposed brush movable, through the rotation of said head, into and out of position for engaging the pie tins en said conveyer, said head being hollow and perforated, means for supplying water to the interior of said head, and mechanism adapted to rotate said head to bring the brush into and out of position for engaging the pie tins during respectively different trips of such tins around the path of the conveyer.

18. A pie machine7 comprising a horizontally disposed table, a conveyer arranged to carry pie tins in succession around the edges of said table, pie crust forming mechanism mounted on said table and adapted to deliver pie crusts adjacent to the path of said conveyer, a crust trimmer and a moistener each located for operative engagement with pie tins on said conveyer and arranged to operate while the conveyer is in motion, and mechanism controlling said trimmer and moistener and adapted to bring the moistener into engagement with each ci the tins during one trip ol' the conveyer and to bring the trimmer into such engagement during a succeeding trip, all being arranged to prevent both trimmer and moistener from operating on the same tin during the same trip.

19. The combination of a pie crust forming device, a crust moistener, a crust trimmer, a conveyer adapted. to carry a series ol pie tins and arranged to travel in a circuit. adj acent to said forming device, moistener and trimmer, mechanism controlling the operation of said moistener and trimmer whereby the moistener will be thrown into operation and the trimmer will be thrown out of operation on the approach of a certain tin ol' the series, and whereby the trimmer will be OLIVER COLBORNE.

Vitnesses F. A. RUMMLER, MARY M. DILLMAN. 

